A cylinder 4 cm in diameter and 40 cm long is made of brass. (Density = 8.5 g/cm3) Calculate its weight. Show your work!
(V= $\pi$ r²h)
W = DV

Question

A cylinder 4 cm in diameter and 40 cm long is made of brass. (Density = 8.5 g/cm3) Calculate its weight. Show your work!
(V=

\pi

r²h)
W = DV

Quizplus · Accepted Answer

First, calculate the volume (V) of the cylinder using the formula V = πr^2h, where r is the radius (half of the diameter, so 2 cm) and h is the height (40 cm). V = π(2^2)(40) = 3.14 * 4 * 40 = 502.4 cm^3. Then, calculate the weight (W) using the formula W = DV, where D is the density (8.5 g/cm^3) and V is the volume we just calculated. W = 8.5 * 502.4 = 4270.4 grams.

A Cylinder 4 Cm in Diameter and 40 Cm Long π\piπ

A Cylinder 4 Cm in Diameter and 40 Cm Long $\pi$